☑ Inductor Frequency Characteristics

Since each inductor has its own characteristics this article presents the characteristics of each inductor and the points to keep in mind when selecting an inductor. 2 typical applications for inductors and chokes.

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Small rf inductors which are used in the rf circuits of mobile phones and other communications equipment can be categorized into three types depending on how they are constructed.

Inductor frequency characteristics. This is analogous to using large and small bypass capacitors in parallel on a printed wiring board to achieve a low impedance over a broad frequency range. It usually consists of a coil of insulated wire wound on a magnetic core although some consist of a donut shaped bead of ferrite material strung on a wire. The frequency characteristics of the q are shown in the graph by structure wire wound multilayer of muratas high frequency coil 1005 size.

This is one reason for the rising demand for ultra compact rf inductors with high q 1 characteristics capable of reducing circuit loss to the absolute minimum. A choke is an inductor designed specifically for blocking high frequency alternating current ac in an electrical circuit while allowing dc or low frequency signals to pass. Murata manufacturing co ltd.

It is against this backdrop that murata has developed and released the lqp02hq series of inductors whose q characteristics are further improved over those of the companys lqp02tq series. There are many characteristics and specifications which appear on an inductors datasheet which holds significant value to the nature of the inductor. Has begun mass production of the new lqp03tq02 series of compact 0201 standard size 06 x 03 x 03 mm high frequency chip inductors which have some of the highest q characteristics in the industry.

Current inductors for power electronics applications to transformers. Attention is drawn to the excellent rf characteristics and extremely high reliability of the components achieved by large scale production automation and many years of experience in the manufacture of this kind of component. Wire wound thick copper wire is used to reduce dc resistance making the inductors suitable for large current applications.

These include terms such as the curie temperature the inductors dc resistance dcr electromagnetic interference and magnetic saturation flux density. As shown in figure 1 the feature of the wire wound type is the very high q factor compared with the multilayer type. The 100 uh inductor reduces the low frequency component and the 22 uh inductor reduces the high frequency component.

Products have been made available for both high frequency applications and power circuit applications by using different core materials. Rf inductor introducing the feature of murata rf inductors and applications.